The official website for the Black Clover television anime series listed the anime’s five Blu-ray Disc and DVD box set releases with a total of 51 episodes, with 9-12 episodes per set.
The sets also list that the anime will have four cours, and list four creditless opening and ending videos as bonus extras. The sets each list a “Black Clover Special Volume” bonus video extra, but don’t state if the videos will be animated videos.
The first set will ship on February 23 and will retail for 17,000 yen (about US$149) for the Blu-ray Disc set and 15,000 yen (about US$131) for the DVD set. The other four box set releases, listed as “Chapter II” through “Chapter V,” will ship on May 25, July 27, October 26, and January 25, 2019. The first 2018 issue of Weekly Shonen Jump on December 4 will reveal the extras that will come with the first edition of the first box set.